From dfc2732a57e3ea6603d62f769d4f9c80be726fa4 Mon Sep 17 00:00:00 2001
From: Sam Ezeh <sam.z.ezeh@gmail.com>
Date: Sun, 27 Nov 2022 17:58:39 +0000
Subject: [PATCH] gh-91340: Document multiprocessing.set_start_method force
 parameter (GH-32339)

#91340


https://bugs.python.org/issue47184

Automerge-Triggered-By: GH:kumaraditya303
---
 Doc/library/multiprocessing.rst | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Doc/library/multiprocessing.rst b/Doc/library/multiprocessing.rst
index 55160847806..b5ceeb796f8 100644
--- a/Doc/library/multiprocessing.rst
+++ b/Doc/library/multiprocessing.rst
@@ -1089,10 +1089,14 @@ Miscellaneous
    .. versionchanged:: 3.11
       Accepts a :term:`path-like object`.
 
-.. function:: set_start_method(method)
+.. function:: set_start_method(method, force=False)
 
    Set the method which should be used to start child processes.
-   *method* can be ``'fork'``, ``'spawn'`` or ``'forkserver'``.
+   The *method* argument can be ``'fork'``, ``'spawn'`` or ``'forkserver'``.
+   Raises :exc:`RuntimeError` if the start method has already been set and *force*
+   is not ``True``.  If *method* is ``None`` and *force* is ``True`` then the start
+   method is set to ``None``.  If *method* is ``None`` and *force* is ``False``
+   then the context is set to the default context.
 
    Note that this should be called at most once, and it should be
    protected inside the ``if __name__ == '__main__'`` clause of the
-- 
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